From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
To: maintainers@bluecherrydvr.com, anton@corp.bluecherry.net,
andrey_utkin@fastmail.com, ismael@iodev.co.uk,
mchehab@kernel.org
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Subject: [PATCH] media: solo6x10: switch from 'pci_' to 'dma_' API
Date: Fri, 27 Nov 2020 21:34:40 +0100 [thread overview]
Message-ID: <20201127203440.1381359-1-christophe.jaillet@wanadoo.fr> (raw)
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.
When memory is allocated in 'snd_solo_pcm_open()' (solo6x10-g723.c)
GFP_KERNEL can be used because this flag is already used jew a few lines
above.
When memory is allocated in 'solo_enc_alloc()' (solo6x10-v4l2-enc.c)
GFP_KERNEL can be used because this flag is already used jew a few lines
above.
When memory is allocated in 'solo_enc_v4l2_init()' (solo6x10-v4l2-enc.c)
GFP_KERNEL can be used because calls 'solo_enc_alloc()' which already uses
this flag.
@@
@@
- PCI_DMA_BIDIRECTIONAL
+ DMA_BIDIRECTIONAL
@@
@@
- PCI_DMA_TODEVICE
+ DMA_TO_DEVICE
@@
@@
- PCI_DMA_FROMDEVICE
+ DMA_FROM_DEVICE
@@
@@
- PCI_DMA_NONE
+ DMA_NONE
@@
expression e1, e2, e3;
@@
- pci_alloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3;
@@
- pci_zalloc_consistent(e1, e2, e3)
+ dma_alloc_coherent(&e1->dev, e2, e3, GFP_)
@@
expression e1, e2, e3, e4;
@@
- pci_free_consistent(e1, e2, e3, e4)
+ dma_free_coherent(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_single(e1, e2, e3, e4)
+ dma_map_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_single(e1, e2, e3, e4)
+ dma_unmap_single(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4, e5;
@@
- pci_map_page(e1, e2, e3, e4, e5)
+ dma_map_page(&e1->dev, e2, e3, e4, e5)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_page(e1, e2, e3, e4)
+ dma_unmap_page(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_map_sg(e1, e2, e3, e4)
+ dma_map_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_unmap_sg(e1, e2, e3, e4)
+ dma_unmap_sg(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+ dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_single_for_device(e1, e2, e3, e4)
+ dma_sync_single_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+ dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)
@@
expression e1, e2, e3, e4;
@@
- pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+ dma_sync_sg_for_device(&e1->dev, e2, e3, e4)
@@
expression e1, e2;
@@
- pci_dma_mapping_error(e1, e2)
+ dma_mapping_error(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_dma_mask(e1, e2)
+ dma_set_mask(&e1->dev, e2)
@@
expression e1, e2;
@@
- pci_set_consistent_dma_mask(e1, e2)
+ dma_set_coherent_mask(&e1->dev, e2)
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
https://marc.info/?l=kernel-janitors&m=158745678307186&w=4
---
drivers/media/pci/solo6x10/solo6x10-g723.c | 11 +++---
drivers/media/pci/solo6x10/solo6x10-p2m.c | 10 +++---
.../media/pci/solo6x10/solo6x10-v4l2-enc.c | 35 ++++++++++---------
3 files changed, 29 insertions(+), 27 deletions(-)
diff --git a/drivers/media/pci/solo6x10/solo6x10-g723.c b/drivers/media/pci/solo6x10/solo6x10-g723.c
index d137b94869d8..6cebad665565 100644
--- a/drivers/media/pci/solo6x10/solo6x10-g723.c
+++ b/drivers/media/pci/solo6x10/solo6x10-g723.c
@@ -124,9 +124,10 @@ static int snd_solo_pcm_open(struct snd_pcm_substream *ss)
if (solo_pcm == NULL)
goto oom;
- solo_pcm->g723_buf = pci_alloc_consistent(solo_dev->pdev,
- G723_PERIOD_BYTES,
- &solo_pcm->g723_dma);
+ solo_pcm->g723_buf = dma_alloc_coherent(&solo_dev->pdev->dev,
+ G723_PERIOD_BYTES,
+ &solo_pcm->g723_dma,
+ GFP_KERNEL);
if (solo_pcm->g723_buf == NULL)
goto oom;
@@ -148,8 +149,8 @@ static int snd_solo_pcm_close(struct snd_pcm_substream *ss)
struct solo_snd_pcm *solo_pcm = snd_pcm_substream_chip(ss);
snd_pcm_substream_chip(ss) = solo_pcm->solo_dev;
- pci_free_consistent(solo_pcm->solo_dev->pdev, G723_PERIOD_BYTES,
- solo_pcm->g723_buf, solo_pcm->g723_dma);
+ dma_free_coherent(&solo_pcm->solo_dev->pdev->dev, G723_PERIOD_BYTES,
+ solo_pcm->g723_buf, solo_pcm->g723_dma);
kfree(solo_pcm);
return 0;
diff --git a/drivers/media/pci/solo6x10/solo6x10-p2m.c b/drivers/media/pci/solo6x10/solo6x10-p2m.c
index db2afc6a5fcb..ca70a864a3ef 100644
--- a/drivers/media/pci/solo6x10/solo6x10-p2m.c
+++ b/drivers/media/pci/solo6x10/solo6x10-p2m.c
@@ -37,16 +37,16 @@ int solo_p2m_dma(struct solo_dev *solo_dev, int wr,
if (WARN_ON_ONCE(!size))
return -EINVAL;
- dma_addr = pci_map_single(solo_dev->pdev, sys_addr, size,
- wr ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(solo_dev->pdev, dma_addr))
+ dma_addr = dma_map_single(&solo_dev->pdev->dev, sys_addr, size,
+ wr ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
+ if (dma_mapping_error(&solo_dev->pdev->dev, dma_addr))
return -ENOMEM;
ret = solo_p2m_dma_t(solo_dev, wr, dma_addr, ext_addr, size,
repeat, ext_size);
- pci_unmap_single(solo_dev->pdev, dma_addr, size,
- wr ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
+ dma_unmap_single(&solo_dev->pdev->dev, dma_addr, size,
+ wr ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
return ret;
}
diff --git a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
index 3cf7bd6186aa..0abcad4e84fa 100644
--- a/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c
@@ -1286,10 +1286,11 @@ static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
memcpy(solo_enc->jpeg_header, jpeg_header, solo_enc->jpeg_len);
solo_enc->desc_nelts = 32;
- solo_enc->desc_items = pci_alloc_consistent(solo_dev->pdev,
- sizeof(struct solo_p2m_desc) *
- solo_enc->desc_nelts,
- &solo_enc->desc_dma);
+ solo_enc->desc_items = dma_alloc_coherent(&solo_dev->pdev->dev,
+ sizeof(struct solo_p2m_desc) *
+ solo_enc->desc_nelts,
+ &solo_enc->desc_dma,
+ GFP_KERNEL);
ret = -ENOMEM;
if (solo_enc->desc_items == NULL)
goto hdl_free;
@@ -1317,9 +1318,9 @@ static struct solo_enc_dev *solo_enc_alloc(struct solo_dev *solo_dev,
vdev_release:
video_device_release(solo_enc->vfd);
pci_free:
- pci_free_consistent(solo_enc->solo_dev->pdev,
- sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
- solo_enc->desc_items, solo_enc->desc_dma);
+ dma_free_coherent(&solo_enc->solo_dev->pdev->dev,
+ sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
+ solo_enc->desc_items, solo_enc->desc_dma);
hdl_free:
v4l2_ctrl_handler_free(hdl);
kfree(solo_enc);
@@ -1331,9 +1332,9 @@ static void solo_enc_free(struct solo_enc_dev *solo_enc)
if (solo_enc == NULL)
return;
- pci_free_consistent(solo_enc->solo_dev->pdev,
- sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
- solo_enc->desc_items, solo_enc->desc_dma);
+ dma_free_coherent(&solo_enc->solo_dev->pdev->dev,
+ sizeof(struct solo_p2m_desc) * solo_enc->desc_nelts,
+ solo_enc->desc_items, solo_enc->desc_dma);
video_unregister_device(solo_enc->vfd);
v4l2_ctrl_handler_free(&solo_enc->hdl);
kfree(solo_enc);
@@ -1346,9 +1347,9 @@ int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
init_waitqueue_head(&solo_dev->ring_thread_wait);
solo_dev->vh_size = sizeof(vop_header);
- solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev,
- solo_dev->vh_size,
- &solo_dev->vh_dma);
+ solo_dev->vh_buf = dma_alloc_coherent(&solo_dev->pdev->dev,
+ solo_dev->vh_size,
+ &solo_dev->vh_dma, GFP_KERNEL);
if (solo_dev->vh_buf == NULL)
return -ENOMEM;
@@ -1363,8 +1364,8 @@ int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
while (i--)
solo_enc_free(solo_dev->v4l2_enc[i]);
- pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
- solo_dev->vh_buf, solo_dev->vh_dma);
+ dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size,
+ solo_dev->vh_buf, solo_dev->vh_dma);
solo_dev->vh_buf = NULL;
return ret;
}
@@ -1391,6 +1392,6 @@ void solo_enc_v4l2_exit(struct solo_dev *solo_dev)
solo_enc_free(solo_dev->v4l2_enc[i]);
if (solo_dev->vh_buf)
- pci_free_consistent(solo_dev->pdev, solo_dev->vh_size,
- solo_dev->vh_buf, solo_dev->vh_dma);
+ dma_free_coherent(&solo_dev->pdev->dev, solo_dev->vh_size,
+ solo_dev->vh_buf, solo_dev->vh_dma);
}
--
2.27.0
next reply other threads:[~2020-11-27 20:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-27 20:34 Christophe JAILLET [this message]
2020-11-29 1:26 ` [PATCH] media: solo6x10: switch from 'pci_' to 'dma_' API Ismael Luceno
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